MC33689DDWBR2 - SPI SBC with LIN Transceiver, 32-SOIC | NXP
N.º da peça: MC33689DDWBR2 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $6.42 | $6,42 |
| 10 | $5.78 | $57,80 |
| 100 | $4.95 | $495,00 |
| 500 | $4.1 | $2.050,00 |
| 1.000 | $3.55 | $3.550,00 |
MC33689DDWBR2 Visão geral
A System Basis Chip (SBC) is a mixed-signal IC that integrates a voltage regulator, communication transceiver, and housekeeping functions (watchdog, reset, fail-safe) into a single package. An SBC sits between the vehicle battery and the microcontroller, providing a clean regulated rail and physical-layer connectivity to in-vehicle networks. The SBC category itself falls within the broader power management hierarchy: SBC -> power management IC -> analog/mixed-signal semiconductor.
Key features include a 5.0 V, 50 mA low-dropout regulator with full protection and reporting features, an SPI interface for configuration and control, a LIN 2.0/2.1 physical-layer transceiver, and integrated fault handling. The 32-SOIC (7.50 mm wide body) package provides adequate thermal headroom for the modest internal dissipation of an SBC.
The device is implemented using NXP's automotive-qualified mixed-signal BiCMOS process and is targeted at body-electronics ECUs. Internal voltage references and current sources are trimmed at wafer level to ensure regulator accuracy across temperature. The integrated LIN transceiver meets the LIN 2.x physical-layer specification with slew-rate control and dominant-timeout protection.
Typical applications include automotive mirror control, power window lift, seat control modules, and other LIN slave nodes in body-electronics networks. Each of these subsystems uses the SBC to provide regulated logic power, microcontroller housekeeping, and a LIN physical-layer interface to the vehicle body controller.
When designing with this device, ensure the LIN bus pull-up resistor matches the master/slave application and respect the absolute maximum ratings on Vbat and the LIN pin. Use the SPI watchdog and reset features to build a proper fail-safe state into the application firmware.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in same-package alternatives, and practical design notes not aggregated in the manufacturer datasheet alone.
Alternativas drop-in para MC33689DDWBR2 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC33689DDWBR2 (mesmo formato e footprint) — diferindo em Function, Interface, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC33689DWBR2
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$2.1 / unidade
Ver ficha técnica →MC33689PEFR2
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC33689CF
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC33984CHFK
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.09 / unidade
Ver ficha técnica →MC33689DDWBR2 Classificações máximas e características elétricas
| Product Type | System Basis Chip (SBC) with LIN Transceiver |
| Interface | SPI (control) + LIN (bus) |
| Supply Voltage (Vbat) | 5.5 V to 18 V |
| Integrated LDO Output | 5.0 V |
| LDO Output Current | 50 mA |
| LIN Specification | LIN 2.0 / 2.1 compliant |
| Encapsulamento / Caixa | 32-SOIC (0.295", 7.50 mm width) |
| Tipo de montagem | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Lead Free | Yes (per DigiKey listing) |
| Application | Automotive Mirror Control (primary); also power window, seat control |
| LIN Bus Topology | Slave |
| Watchdog / Reset | Yes (SPI-controlled) |
Guia de Configuração de Pinos do MC33689DDWBR2 32-soic (0.295", 7.50 mm width)
Configuração de pinos para MC33689DDWBR2 (pacote 32-soic (0.295", 7.50 mm width)). Este dispositivo de potência possui terminais de gate, drain e source. Para pacotes não polarizados, consulte o datasheet do fabricante para a orientação exata do pino 1 e detalhes do footprint. Aplicações comuns incluem projeto de fontes de alimentação, acionamento de motores e comutação de cargas.
Nenhum dado detalhado de pinagem disponível para MC33689DDWBR2.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MC33689DDWBR2 é adequado para 6 aplicaçãos: Automotive Power Mirror Control, Power Window Lift Module, Power Seat Control Module, Door Module Module, Body Controller LIN Slave, Automotive Sunroof / Convertible Top Module.
Automotive Power Mirror Control
The MC33689DDWBR2's 5.0 V/50 mA integrated LDO, SPI control, and LIN 2.x physical layer map directly to automotive power mirror modules. According to the NXP datasheet, mirror adjustment ECUs combine an SBC + dual half-bridge driver to position mirrors; the MC33689 supplies the MCU rail, monitors faults through SPI, and links to the body controller over LIN at up to 20 kbit/s. The wide-body 32-SOIC package fits the small PCB of a mirror module and shares thermal headroom with the adjacent driver IC. Cross-brand design: a sibling NXP SBC in the same 32-SOIC footprint can be dropped in if a different feature set or higher LDO current is required without re-laying out the PCB.
Recomendado
Power Window Lift Module
Power window ECUs use an SBC for power, bus interface, and diagnostics plus an external half-bridge driver for the window motor. The MC33689DDWBR's LIN 2.x transceiver communicates lift up/down requests from switches and the body controller. According to the NXP datasheet, the SBC's watchdog and reset regulators ensure the host MCU starts in a defined state; the SPI status flags report LIN bus faults, regulator dropouts, and overtemperature to the MCU for fail-safe window stop. The 32-SOIC wide-body dissipates the modest SBC power comfortably. Cross-brand design: pin-compatible NXP SBCs and TLE family LIN SBCs from Infineon in 32-SOIC can serve as second sources once SPI register compatibility is verified.
Recomendado
Power Seat Control Module
Power seat ECUs integrate an SBC + multiple half-bridge drivers to actuate seat motors for recline, slide, and height. The MC33689DDWBR2 supplies the host MCU rail at 5.0 V/50 mA, communicates seat position requests over LIN 2.x, and reports faults via SPI. According to the NXP datasheet, the integrated LDO's thermal shutdown and current limit protect the SBC and the MCU rail during motor stall events. The 32-SOIC wide-body package supports the multiple-decade bus current that the SBC sees during normal seat motion. Cross-brand design: drop in another NXP 32-SOIC SBC if higher LDO current is needed for more complex seat ECUs.
Recomendado
Door Module Module
Integrated door modules combine window, mirror, lock, and lighting control on one ECU. The MC33689DDWBR2's combination of regulated 5.0 V, SPI, and LIN makes it a fit for the master door module that fans out to local sub-modules. According to the NXP datasheet, the SBC's SPI interface serves the host MCU for register access, while the LIN interface links the door module to the body controller. The 50 mA LDO current is sufficient for the door MCU; additional rails for higher-current loads come from external regulators. Cross-brand design: an NXP 32-SOIC pin-compatible variant with higher LDO current scales the door module without PCB change.
Recomendado
Body Controller LIN Slave
In a hierarchical body network, the MC33689DDWBR2 sits at the leaf as a LIN slave receiving commands from a master body controller over the LIN 2.x bus. The SPI control plane lets the local MCU poll register sets for bus errors, regulator status, and thermal warnings, then act on them via fail-safe firmware paths. According to the NXP datasheet, the integrated dominant-timeout prevents a single stuck slave from holding the LIN bus, preserving master communication with other nodes. Cross-brand design: TLE7263 from Infineon in 32-SOIC footprint serves as a cross-brand second source once SPI/LIN behavior is validated.
Recomendado
Automotive Sunroof / Convertible Top Module
Sunroof and convertible top modules need SBC + half-bridge for the drive motor plus LIN to the body controller. The MC33689DDWBR2 supplies 5.0 V at 50 mA to the host MCU, handles the LIN 2.x command interface, and reports fault status through SPI registers. According to the NXP datasheet, the SBC's thermal shutdown and current limit support robust operation during stalled-motor events where the supply rail can dip. The 32-SOIC wide-body dissipates the SBC power with margin. Cross-brand design: choose an NXP 32-SOIC pin-compatible variant if a wider temperature grade is required for under-hood-mounted sunroof modules.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC33689DDWBR2 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MC33689DWBR2 | MC33689PEFR2 | MC33689CF | MC33984CHFK |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 32-SOIC (7.50 mm wide body) | 32-SOIC (7.50 mm wide body) - same | 32-SOIC (7.50 mm wide body) - same | 32-SOIC (7.50 mm wide body) - same | 32-SOIC (7.50 mm wide body) - same |
| Product Type | SBC with LIN Transceiver | SBC with LIN Transceiver | SBC with LIN Transceiver | SBC with LIN Transceiver | Dual High-Side Switch |
| Supply Voltage | 5.5 V to 18 V | 5.5 V to 18 V | 5.5 V to 18 V | 5.5 V to 18 V | 8 V to 27 V |
| Integrated LDO Output | 5.0 V / 50 mA | 5.0 V / 50 mA | 5.0 V / 50 mA | 5.0 V / 50 mA | None (high-side switch) |
| Communication Interface | SPI + LIN 2.0/2.1 | SPI + LIN 2.0/2.1 | SPI + LIN 2.0/2.1 | SPI + LIN 2.0/2.1 | SPI (control only) |
| Primary Application | Mirror / window / seat LIN slave | Mirror / window / seat LIN slave | Mirror / window / seat LIN slave | Mirror / window / seat LIN slave | Lighting / general purpose load |
| Approx. Unit Price (USD, qty-1000) | 3.55 | 3.55 | 4.10 | 4.25 | 3.90 |
Principais diferenciais
- Integration of LDO + LIN transceiver + SPI in a single 32-SOIC (vs MC33984CHFK)
- Wide 5.5 V to 18 V Vbat operating range (vs MC33984CHFK (8 V to 27 V))
- Automotive-grade LIN 2.x physical layer (vs Generic LIN SBCs)
Notas de projeto
The MC33689DDWBR2 integrates a 5.0 V / 50 mA LDO sourced from Vbat (5.5 V to 18 V). Estimate: at worst-case Vbat=18 V, the LDO drops 13 V at 50 mA = 650 mW internal dissipation. The wide-body 32-SOIC has theta_JA around 60-70 C/W on a 1 sq inch 2-layer copper pour, giving a junction rise of ~40-45 C above ambient - well within thermal limits. For higher-current host rails, use an external LDO or DC-DC instead of relying on the integrated 50 mA regulator.
Do not connect Vbat above 18 V sustained; the absolute maximum on Vbat is documented in the datasheet and exceeded only briefly under load-dump if external TVS protection is present. Place a reverse-battery and load-dump protection network ahead of the Vbat pin. The LIN bus pin needs an external master/slave pull-up; absence of the pull-up causes the bus to float and fail the physical-layer conformance check. Respect the SPI logic-level compatibility with the host MCU; the datasheet defines the VIH/VIL thresholds.
Place the Vbat bypass capacitor (typically 100 nF ceramic plus 10 uF bulk) as close as possible to the Vbat pin to handle LIN bus switching transients. Keep the LIN bus trace short and away from sensitive analog or RF traces to minimize EMI. The exposed pad (if used in this variant) should be soldered to a ground copper pour for thermal relief. Route SPI traces (SCLK, MOSI, MISO, INT) away from the LIN trace to avoid digital-noise coupling.
Informações de conformidade
Lead Free per DigiKey listing. AEC-Q100 qualification assumed for automotive targeting but specific grade [DATA_NEEDED] from NXP datasheet. RoHS/REACH compliance flags [DATA_NEEDED] from official NXP declaration.
